Counterbalance pump



Nov. 17, 1953 Filed July 26, 1951 2 Sheet's-Sheet l I J -j '2 Z6 1 T zz I J V K 1 Vi); H "2. v 1* INVENTOR 59 Warez KRzaiLardson ATTORNEYS NOV. 17, 1953 w RICHARDSQN 2,659,315

COUNTERBALANCE PUMP Filed July 26, 1951 2 Sheets-Sheet 2 INVENTOR Wb. rdfffiz'ardson ATTORNEYS Patented Nov. 17, 1953 2,659,315 COUNTERBALANCE I PUMP Ward K. Richardson, Falls City,

Oreg., assignor,

by direct and mesne assignments, to The Richardson Company of Oregon, Ltd.

Application July 26, 1951, Serial No. 238,690 3 Claims. (01. 103-153) This invention relates to pumps.

An object of this invention is to provide a pumping system wherein water or other liquid is elevated to a tank which is so constructed and arranged that the weight of the water in the column between the pump and tank is counterbalanced so that relatively small power will be required to elevate the liquid to the tank. In carrying out this invention a counterbalancing pumping member is provided which takes up the weight of the liquid column in cooperation with a counterweight. In this manner only a relatively small force is required to actuate the pump.

Another object of this invention is to provide a pumping system which is simple in construction and which can be economically operated.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawings and specification, and then more particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a detailed side elevation of a counterbalancing pumping system constructed according to an embodiment of this invention,

Figure 2 is a fragmentary sectional view taken on the line 2-2 of Figure 1,

Figure 3 is a fragmentary sectional view taken on the line 3-3 of Figure 1,

Figure 4 is a fragmentary sectional view showing the connection between the standpipe and the elevated receiver,

Figure 5 is a fragmentary sectional view taken on the line 5-5 of Figure 3.

Referring to the drawings, the numeral Ill designates generally an elevated liquid receiver which is supported in the present instance on supporting legs II. The receiver I is provided adjacent the upper portion thereof with an outlet pipe line l3. A vertically disposed standpipe or intake line I2 is connected at its upper end by means of a connecting member I4 to the bottom of the receiver Ill.

The standpipe l2 has connected to its lower end a horizontally disposed pipe 15, and a pumping cylinder l6 disposed in the present instance in vertical position, is connected to the horizontal pipe l by means of an L H. A downwardly closing check valve I8 is interposed in the pipe 15 so as to relieve the pumping cylinder 16 of any back pressure of the liquid in the standpipe l2.

An intake supply line H! is connected into the horizontal pipe I5 between the check valve l8 and the L I! and a downwardly closing check valve 29 is interposed in the intake line [9. The cylinder l6 has slidable therein a pumping piston 2| and an upwardly extending piston rod 22 is connected at its lower end to the piston 21. A second horizontally disposed pipe 23 is connected at one end to the lower end portion of the standpipe 12 and is also connected through an L 24 to a vertically disposed counterb-alancing cylinder 25.

A piston 26 is slldable in the cylinder 25 and a connecting rod 2'! is connected at one end to the piston 25 and extends upwardly from the cylinder 25. A weight receptacle 28 is secured to the upper ends of the piston rods 22 and 27 and a plurality of counterbalancing weights 29 are adapted to be disposed in the receptacle 28. These weights 29 are of such character as to counterbalance the hydrostatic pressure of the liquid in the standpipe l2 so that the piston rods 22 and 2! may be vertically reciprocated through the medium of a relatively small power force.

A crosshead 30 is connected between the piston rods 22 and 2! below the receptacle 28 and in the present instance a rocking beam 3! is pivotally connected at one end to the crosshead 30. The beam or lever 3| is pivoted between the ends thereof on a pivot 32 carried by a support 33, and the opposite end of the lever or making beam 3| is pivotally connected to a. link 34 which is pivoted to a crank pin 35. The crank pin 35 is carried by a crank plate 36 which is fixed on a drive shaft 31. The drive shaft 3'! is adapted to be rotated by any suitable power means and is journalled adjacent the plate 36 in a bearing -38 carried by a bearing support 39.

In the use and operation of this pumping structure, the pump it is connected through the intake pipe line l9 to a source of liquid supply which may be below the ground or above the ground at a suitable point below the elevated receiver Ill. The pistons 2| and 26 are reciprocated by rocking of the lever 3| and at this time the counterbalancing piston 26 will move the water upwardly in standpipe l2 and at the same time the liquid in cylinder it will also be forced past the check valve l8 upwardly into the standpipe l2 and into the receiver I 0. When the pistons 2| and 26 are moved upwardly check valve I8 will close and water or other liquid will be drawn from the supply line I 9 into clyinder l6. At the same time the water in standpipe l2 will move downwardly through horizontal pipe 23 into counterbalancing cylinder 25 so that only a relatively small power force will be required to move the pistons 2| and 26 upwardly and downwardly.

What I claim is:

1. A counterbalanced pumping system comprising an elevated receiver, a vertically disposed intake pipe connected at one end to said receiver, a pumping cylinder connected with the lower end of said intake pipe, an upwardly opening check valve between said pumping cylinder and said intake pipe, a supply pipe connected with said pumping cylinder, an upwardly opening check valve between said pumping cylinder and said supply pipe, a counterbalancing cylinder connected with said vertical pipe, a piston slidable in each cylinder, a piston rod extending from each piston, a receptacle fixed to said piston rods, counterbalancing weights in said receptacle, and means connected with said piston rods for reciprocating said pistons.

2. A counterbalanced pumping system comprising an elevated receiver, a vertically disposed intake pipe connected at one end to said receiver, a pumping cylinder connected with the lower end of said intake pipe, an upwardly opening check valve between said pumping cylinder and said intake pipe, a supply pipe connected with said pumping cylinder, an upwardly opening check valve between said pumping cylinder and said supply pipe, a counterbalancing cylinder connected with said vertical pipe, a piston slidable in each cylinder, a piston rod extending from each piston, and means connected with said piston rods for reciprocating said pistons.

3. A counterbalanced pumping system comprising a receiver, an intake pipe connected at one end to said receiver, a pumping cylinder connected with the other end of said intake pipe, a check valve between said pumping cylinder and said intake pipe, a supply pipe connected with said pumping cylinder, a check valve between said pumping cylinder and said supply pipe, a counterbalancing cylinder connected with said intake pipe, a piston slidable in each cylinder, a piston rod extending from each piston, a receptacle fixed to said piston rods, counterbalan'cing means associated with said receptacle, and means connected with said piston rods for reciprocating said pistons.

WARD x. RICHARDSON.

References Cited in the me of this patent UNITED STATES PATENTS Number 7 Name Date 823,207 Deis June 12, 1906 1,170,25 Hendrickson Feb. 1, 916 1,661,195 Parker Mar. 0, 192a 

